14. Concomitant use of strong or moderate CYP3A4 inhibitor (indinavir, nelfinavir, ritonavir, clarithromycin, itraconazole, ketonazole, nefazodone, saquinovir, telithromycin, aprepitant, erythromycin, fluconazole, grapefruit juice, verapamil, diltiazem)